Home / 1,240.66-1,848.37-1,181.89

Finding the Fourth Proportional to 1,240.66, 1,848.37 and 1,181.89

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Solution

The fourth proportional to 1,240.66, 1,848.37 and 1,181.89 is: 1,760.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240.66 : 1,848.37 = 1,181.89 : x
  2. Step 2: Convert to fraction form
    1,240.66/1,848.37 = 1,181.89/x
  3. Step 3: Cross multiply
    1,240.66x = 1,848.37 × 1,181.89
  4. Step 4: Simplify right side
    1,240.66x = 2,184,560.78
  5. Step 5: Solve for x
    x = 2,184,560.78/1,240.66
  6. Step 6: Final answer
    x = 1,760.81

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.